#include <config.h>
-//#include <utility>
+#include <unistd.h>
+#include <sys/wait.h>
#ifdef __GNUG__
#pragma implementation
#include "TextCache.h"
#include "bufferlist.h"
#include "insets/insetbib.h"
+#include "menus.h"
+#include "lyx_gui_misc.h"
+#include "lyxrc.h"
+#include "intl.h"
using std::pair;
+using std::endl;
extern BufferList bufferlist;
extern bool selection_possible;
extern char ascii_type;
+extern void sigchldhandler(pid_t pid, int * status);
extern int bibitemMaxWidth(Painter &, LyXFont const &);
+extern void FreeUpdateTimer();
extern "C"
void C_BufferView_CursorToggleCB(FL_OBJECT * ob, long buf);
+static inline
+void waitForX()
+{
+ XSync(fl_get_display(), 0);
+}
+
+
BufferView::Pimpl::Pimpl(BufferView * b, LyXView * o,
int xpos, int ypos, int width, int height)
: bv_(b), owner_(o)
lyx_focus = false;
}
+
+Painter & BufferView::Pimpl::painter()
+{
+ return workarea->getPainter();
+}
+
+
+void BufferView::Pimpl::buffer(Buffer * b)
+{
+ lyxerr[Debug::INFO] << "Setting buffer in BufferView ("
+ << b << ")" << endl;
+ if (buffer_) {
+ bv_->insetSleep();
+ buffer_->delUser(bv_);
+
+ // Put the old text into the TextCache, but
+ // only if the buffer is still loaded.
+ // Also set the owner of the test to 0
+ bv_->text->owner(0);
+ textcache.add(bv_->text);
+ if (lyxerr.debugging())
+ textcache.show(lyxerr, "BufferView::buffer");
+
+ bv_->text = 0;
+ }
+
+ // Set current buffer
+ buffer_ = b;
+
+ if (bufferlist.getState() == BufferList::CLOSING) return;
+
+ // Nuke old image
+ // screen is always deleted when the buffer is changed.
+ delete screen;
+ screen = 0;
+
+ // If we are closing the buffer, use the first buffer as current
+ if (!buffer_) {
+ buffer_ = bufferlist.first();
+ }
+
+ if (buffer_) {
+ lyxerr[Debug::INFO] << "Buffer addr: " << buffer_ << endl;
+ buffer_->addUser(bv_);
+ owner_->getMenus()->showMenus();
+ // If we don't have a text object for this, we make one
+ if (bv_->text == 0)
+ resizeCurrentBuffer();
+ else {
+ updateScreen();
+ updateScrollbar();
+ }
+ screen->first = screen->TopCursorVisible();
+ redraw();
+ updateAllVisibleBufferRelatedPopups();
+ bv_->insetWakeup();
+ } else {
+ lyxerr[Debug::INFO] << " No Buffer!" << endl;
+ owner_->getMenus()->hideMenus();
+ updateScrollbar();
+ workarea->redraw();
+
+ // Also remove all remaining text's from the testcache.
+ // (there should not be any!) (if there is any it is a
+ // bug!)
+ if (lyxerr.debugging())
+ textcache.show(lyxerr, "buffer delete all");
+ textcache.clear();
+ }
+ // should update layoutchoice even if we don't have a buffer.
+ owner_->updateLayoutChoice();
+ owner_->getMiniBuffer()->Init();
+ owner_->updateWindowTitle();
+}
+
+void BufferView::Pimpl::resize(int xpos, int ypos, int width, int height)
+{
+ workarea->resize(xpos, ypos, width, height);
+ update(3);
+ redraw();
+}
+
+
+void BufferView::Pimpl::resize()
+{
+ // This will resize the buffer. (Asger)
+ if (buffer_)
+ resizeCurrentBuffer();
+}
+
+
+void BufferView::Pimpl::redraw()
+{
+ lyxerr[Debug::INFO] << "BufferView::redraw()" << endl;
+ workarea->redraw();
+}
+
+
+void BufferView::Pimpl::fitCursor()
+{
+ if (screen) screen->FitCursor();
+ updateScrollbar();
+}
+
+
+void BufferView::Pimpl::redoCurrentBuffer()
+{
+ lyxerr[Debug::INFO] << "BufferView::redoCurrentBuffer" << endl;
+ if (buffer_ && bv_->text) {
+ resize();
+ owner_->updateLayoutChoice();
+ }
+}
+
+
+int BufferView::Pimpl::resizeCurrentBuffer()
+{
+ lyxerr[Debug::INFO] << "resizeCurrentBuffer" << endl;
+
+ LyXParagraph * par = 0;
+ LyXParagraph * selstartpar = 0;
+ LyXParagraph * selendpar = 0;
+ int pos = 0;
+ int selstartpos = 0;
+ int selendpos = 0;
+ int selection = 0;
+ int mark_set = 0;
+
+ ProhibitInput();
+
+ owner_->getMiniBuffer()->Set(_("Formatting document..."));
+
+ if (bv_->text) {
+ par = bv_->text->cursor.par;
+ pos = bv_->text->cursor.pos;
+ selstartpar = bv_->text->sel_start_cursor.par;
+ selstartpos = bv_->text->sel_start_cursor.pos;
+ selendpar = bv_->text->sel_end_cursor.par;
+ selendpos = bv_->text->sel_end_cursor.pos;
+ selection = bv_->text->selection;
+ mark_set = bv_->text->mark_set;
+ delete bv_->text;
+ bv_->text = new LyXText(bv_, workarea->workWidth(), buffer_);
+ } else {
+ // See if we have a text in TextCache that fits
+ // the new buffer_ with the correct width.
+ bv_->text = textcache.findFit(buffer_, workarea->workWidth());
+ if (bv_->text) {
+ if (lyxerr.debugging()) {
+ lyxerr << "Found a LyXText that fits:\n";
+ textcache.show(lyxerr, bv_->text);
+ }
+ // Set the owner of the newly found text
+ bv_->text->owner(bv_);
+ if (lyxerr.debugging())
+ textcache.show(lyxerr, "resizeCurrentBuffer");
+ } else {
+ bv_->text = new LyXText(bv_, workarea->workWidth(), buffer_);
+ }
+ }
+ updateScreen();
+
+ if (par) {
+ bv_->text->selection = true;
+ /* at this point just to avoid the Delete-Empty-Paragraph
+ * Mechanism when setting the cursor */
+ bv_->text->mark_set = mark_set;
+ if (selection) {
+ bv_->text->SetCursor(selstartpar, selstartpos);
+ bv_->text->sel_cursor = bv_->text->cursor;
+ bv_->text->SetCursor(selendpar, selendpos);
+ bv_->text->SetSelection();
+ bv_->text->SetCursor(par, pos);
+ } else {
+ bv_->text->SetCursor(par, pos);
+ bv_->text->sel_cursor = bv_->text->cursor;
+ bv_->text->selection = false;
+ }
+ }
+ screen->first = screen->TopCursorVisible(); /* this will scroll the
+ * screen such that the
+ * cursor becomes
+ * visible */
+ updateScrollbar();
+ redraw();
+ owner_->getMiniBuffer()->Init();
+ bv_->setState();
+ AllowInput();
+
+ // Now if the title form still exist kill it
+ TimerCB(0, 0);
+
+ return 0;
+}
+
+
+void BufferView::Pimpl::gotoError()
+{
+ if (!screen)
+ return;
+
+ screen->HideCursor();
+ bv_->beforeChange();
+ update(-2);
+ LyXCursor tmp;
+
+ if (!bv_->text->GotoNextError()) {
+ if (bv_->text->cursor.pos
+ || bv_->text->cursor.par != bv_->text->FirstParagraph()) {
+ tmp = bv_->text->cursor;
+ bv_->text->cursor.par = bv_->text->FirstParagraph();
+ bv_->text->cursor.pos = 0;
+ if (!bv_->text->GotoNextError()) {
+ bv_->text->cursor = tmp;
+ owner_->getMiniBuffer()
+ ->Set(_("No more errors"));
+ LyXBell();
+ }
+ } else {
+ owner_->getMiniBuffer()->Set(_("No more errors"));
+ LyXBell();
+ }
+ }
+ update(0);
+ bv_->text->sel_cursor = bv_->text->cursor;
+}
+
+
void BufferView::Pimpl::updateScreen()
{
// Regenerate the screen.
}
+void BufferView::Pimpl::updateScrollbar()
+{
+ /* If the text is smaller than the working area, the scrollbar
+ * maximum must be the working area height. No scrolling will
+ * be possible */
+
+ if (!buffer_) {
+ workarea->setScrollbar(0, 1.0);
+ return;
+ }
+
+ static long max2 = 0;
+ static long height2 = 0;
+
+ long cbth = 0;
+ long cbsf = 0;
+
+ if (bv_->text)
+ cbth = bv_->text->height;
+ if (screen)
+ cbsf = screen->first;
+
+ // check if anything has changed.
+ if (max2 == cbth &&
+ height2 == workarea->height() &&
+ current_scrollbar_value == cbsf)
+ return; // no
+ max2 = cbth;
+ height2 = workarea->height();
+ current_scrollbar_value = cbsf;
+
+ if (cbth <= height2) { // text is smaller than screen
+ workarea->setScrollbar(0, 1.0); // right?
+ return;
+ }
+
+ long maximum_height = workarea->height() * 3 / 4 + cbth;
+ long value = cbsf;
+
+ // set the scrollbar
+ double hfloat = workarea->height();
+ double maxfloat = maximum_height;
+
+ float slider_size = 0.0;
+ int slider_value = value;
+
+ workarea->setScrollbarBounds(0, bv_->text->height - workarea->height());
+ double lineh = bv_->text->DefaultHeight();
+ workarea->setScrollbarIncrements(lineh);
+ if (maxfloat > 0.0) {
+ if ((hfloat / maxfloat) * float(height2) < 3)
+ slider_size = 3.0/float(height2);
+ else
+ slider_size = hfloat / maxfloat;
+ } else
+ slider_size = hfloat;
+
+ workarea->setScrollbar(slider_value, slider_size / workarea->height());
+}
+
+
+// Callback for scrollbar slider
+void BufferView::Pimpl::scrollCB(double value)
+{
+ extern bool cursor_follows_scrollbar;
+
+ if (buffer_ == 0) return;
+
+ current_scrollbar_value = long(value);
+ if (current_scrollbar_value < 0)
+ current_scrollbar_value = 0;
+
+ if (!screen)
+ return;
+
+ screen->Draw(current_scrollbar_value);
+
+ if (cursor_follows_scrollbar) {
+ LyXText * vbt = bv_->text;
+ int height = vbt->DefaultHeight();
+
+ if (vbt->cursor.y < screen->first + height) {
+ vbt->SetCursorFromCoordinates(0,
+ screen->first +
+ height);
+ } else if (vbt->cursor.y >
+ screen->first + workarea->height() - height) {
+ vbt->SetCursorFromCoordinates(0,
+ screen->first +
+ workarea->height() -
+ height);
+ }
+ }
+ waitForX();
+}
+
+
+// Callback for scrollbar down button
+void BufferView::Pimpl::downCB(long time, int button)
+{
+ if (buffer_ == 0) return;
+
+ switch (button) {
+ case 2:
+ scrollUpOnePage();
+ break;
+ case 3:
+ scrollDownOnePage();
+ break;
+ default:
+ scrollDown(time);
+ break;
+ }
+}
+
+
int BufferView::Pimpl::scrollUp(long time)
{
if (buffer_ == 0) return 0;
bv_->text->SetCursorFromCoordinates(x, y + screen->first);
if (!bv_->text->selection)
- bv_->update(-3); // Maybe an empty line was deleted
+ update(-3); // Maybe an empty line was deleted
bv_->text->SetSelection();
screen->ToggleToggle();
if (screen->FitCursor())
- bv_->updateScrollbar();
+ updateScrollbar();
screen->ShowCursor();
}
return;
// Single-click on work area
-void BufferView::Pimpl::workAreaButtonPress(int xpos, int ypos, unsigned int button)
+void BufferView::Pimpl::workAreaButtonPress(int xpos, int ypos,
+ unsigned int button)
{
last_click_x = -1;
last_click_y = -1;
bv_->text->ClearSelection();
bv_->text->FullRebreak();
screen->Update();
- bv_->updateScrollbar();
+ updateScrollbar();
}
// Popup table popup when on a table.
// This is obviously temporary, since we
bv_->text->ClearSelection();
bv_->text->FullRebreak();
screen->Update();
- bv_->updateScrollbar();
+ updateScrollbar();
// Single left click in math inset?
if ((inset_hit != 0) &&
owner_->updateLayoutChoice();
if (screen->FitCursor()){
- bv_->updateScrollbar();
+ updateScrollbar();
selection_possible = false;
}
screen->ToggleSelection(false);
/* This will fit the cursor on the screen
* if necessary */
- bv_->update(0);
+ update(0);
}
}
}
screen->ToggleSelection(false);
/* This will fit the cursor on the screen
* if necessary */
- bv_->update(0);
+ update(0);
}
}
// fitCursor() ensures we don't jump back
// to the start of the document on vertical
// resize
- bv_->fitCursor();
+ fitCursor();
// The main window size has changed, repaint most stuff
- bv_->redraw();
+ redraw();
// ...including the minibuffer
owner_->getMiniBuffer()->Init();
}
// always make sure that the scrollbar is sane.
- bv_->updateScrollbar();
+ updateScrollbar();
owner_->updateLayoutChoice();
return;
}
else
bv_->text->InsertStringB(clb);
- bv_->update(1);
+ update(1);
}
}
+
+void BufferView::Pimpl::update()
+{
+ if (screen) screen->Update();
+}
+
+
+void BufferView::Pimpl::update(signed char f)
+{
+ owner_->updateLayoutChoice();
+
+ if (!bv_->text->selection && f > -3)
+ bv_->text->sel_cursor = bv_->text->cursor;
+
+ FreeUpdateTimer();
+ bv_->text->FullRebreak();
+
+ update();
+
+ if (f != 3 && f != -3) {
+ fitCursor();
+ updateScrollbar();
+ }
+
+ if (f == 1 || f == -1) {
+ if (buffer_->isLyxClean()) {
+ buffer_->markDirty();
+ owner_->getMiniBuffer()->setTimer(4);
+ } else {
+ buffer_->markDirty();
+ }
+ }
+}
+
+
+void BufferView::Pimpl::smallUpdate(signed char f)
+{
+ screen->SmallUpdate();
+ if (screen->TopCursorVisible()
+ != screen->first) {
+ update(f);
+ return;
+ }
+
+ fitCursor();
+ updateScrollbar();
+
+ if (!bv_->text->selection)
+ bv_->text->sel_cursor = bv_->text->cursor;
+
+ if (f == 1 || f == -1) {
+ if (buffer_->isLyxClean()) {
+ buffer_->markDirty();
+ owner_->getMiniBuffer()->setTimer(4);
+ } else {
+ buffer_->markDirty();
+ }
+ }
+}
+
+
+// Callback for cursor timer
+void BufferView::Pimpl::cursorToggle()
+{
+ // Quite a nice place for asyncron Inset updating, isn't it?
+ // Actually no! This is run even if no buffer exist... so (Lgb)
+ if (!buffer_) {
+ goto set_timer_and_return;
+ }
+
+ // NOTE:
+ // On my quest to solve the gs render hangups I am now
+ // disabling the SIGHUP completely, and will do a wait
+ // now and then instead. If the guess that xforms somehow
+ // destroys something is true, this is likely (hopefully)
+ // to solve the problem...at least I hope so. Lgb
+
+ // ...Ok this seems to work...at least it does not make things
+ // worse so far. However I still see gs processes that hangs.
+ // I would really like to know _why_ they are hanging. Anyway
+ // the solution without the SIGCHLD handler seems to be easier
+ // to debug.
+
+ // When attaching gdb to a a running gs that hangs it shows
+ // that it is waiting for input(?) Is it possible for us to
+ // provide that input somehow? Or figure what it is expecing
+ // to read?
+
+ // One solution is to, after some time, look if there are some
+ // old gs processes still running and if there are: kill them
+ // and re render.
+
+ // Another solution is to provide the user an option to rerender
+ // a picture. This would, for the picture in question, check if
+ // there is a gs running for it, if so kill it, and start a new
+ // rendering process.
+
+ // these comments posted to lyx@via
+ {
+ int status = 1;
+ int pid = waitpid(static_cast<pid_t>(0), &status, WNOHANG);
+ if (pid == -1) // error find out what is wrong
+ ; // ignore it for now.
+ else if (pid > 0)
+ sigchldhandler(pid, &status);
+ }
+
+ updatelist.update(bv_);
+
+ if (!screen) {
+ goto set_timer_and_return;
+ }
+
+ if (lyx_focus && work_area_focus) {
+ if (!bv_->the_locking_inset) {
+ screen->CursorToggle();
+ } else {
+ bv_->the_locking_inset->
+ ToggleInsetCursor(bv_);
+ }
+ goto set_timer_and_return;
+ } else {
+ // Make sure that the cursor is visible.
+ if (!bv_->the_locking_inset) {
+ screen->ShowCursor();
+ } else {
+ if (!bv_->the_locking_inset->isCursorVisible())
+ bv_->the_locking_inset->
+ ToggleInsetCursor(bv_);
+ }
+ // This is only run when work_area_focus or lyx_focus is false.
+ Window tmpwin;
+ int tmp;
+ XGetInputFocus(fl_display, &tmpwin, &tmp);
+ // Commenting this out, we have not had problems with this
+ // for a long time. We will probably work on this code later
+ // and we can reenable this debug code then. Now it only
+ // anoying when debugging. (Lgb)
+ //if (lyxerr.debugging(Debug::INFO)) {
+ // lyxerr << "tmpwin: " << tmpwin
+ // << "\nwindow: " << view->owner_->getForm()->window
+ // << "\nwork_area_focus: " << view->work_area_focus
+ // << "\nlyx_focus : " << view->lyx_focus
+ // << endl;
+ //}
+ if (tmpwin != owner_->getForm()->window) {
+ lyx_focus = false;
+ goto skip_timer;
+ } else {
+ lyx_focus = true;
+ if (!work_area_focus)
+ goto skip_timer;
+ else
+ goto set_timer_and_return;
+ }
+ }
+
+ set_timer_and_return:
+ fl_set_timer(timer_cursor, 0.4);
+ skip_timer:
+ return;
+}
+
+
+void BufferView::Pimpl::cursorPrevious()
+{
+ if (!bv_->text->cursor.row->previous) return;
+
+ long y = screen->first;
+ Row * cursorrow = bv_->text->cursor.row;
+ bv_->text->SetCursorFromCoordinates(bv_->text->cursor.x_fix, y);
+ bv_->text->FinishUndo();
+ // This is to allow jumping over large insets
+ if ((cursorrow == bv_->text->cursor.row))
+ bv_->text->CursorUp();
+
+ if (bv_->text->cursor.row->height < workarea->height())
+ screen->Draw(bv_->text->cursor.y
+ - bv_->text->cursor.row->baseline
+ + bv_->text->cursor.row->height
+ - workarea->height() + 1 );
+}
+
+
+void BufferView::Pimpl::cursorNext()
+{
+ if (!bv_->text->cursor.row->next) return;
+
+ long y = screen->first;
+ bv_->text->GetRowNearY(y);
+ Row * cursorrow = bv_->text->cursor.row;
+ bv_->text->SetCursorFromCoordinates(bv_->text->cursor.x_fix, y
+ + workarea->height());
+ bv_->text->FinishUndo();
+ // This is to allow jumping over large insets
+ if ((cursorrow == bv_->text->cursor.row))
+ bv_->text->CursorDown();
+
+ if (bv_->text->cursor.row->height < workarea->height())
+ screen->Draw(bv_->text->cursor.y
+ - bv_->text->cursor.row->baseline);
+}
+
+
+bool BufferView::Pimpl::available() const
+{
+ if (buffer_ && bv_->text) return true;
+ return false;
+}
+
+
+void BufferView::Pimpl::beforeChange()
+{
+ toggleSelection();
+ bv_->text->ClearSelection();
+ FreeUpdateTimer();
+}
+
+
+void BufferView::Pimpl::savePosition()
+{
+ backstack.push(buffer_->fileName(),
+ bv_->text->cursor.x,
+ bv_->text->cursor.y);
+}
+
+
+void BufferView::Pimpl::restorePosition()
+{
+ if (backstack.empty()) return;
+
+ int x, y;
+ string fname = backstack.pop(&x, &y);
+
+ beforeChange();
+ Buffer * b = bufferlist.exists(fname) ?
+ bufferlist.getBuffer(fname) :
+ bufferlist.loadLyXFile(fname); // don't ask, just load it
+ buffer(b);
+ bv_->text->SetCursorFromCoordinates(x, y);
+ update(0);
+}
+
+
+void BufferView::Pimpl::setState()
+{
+ if (!lyxrc.rtl_support)
+ return;
+
+ if (bv_->text->real_current_font.isVisibleRightToLeft()) {
+ if (owner_->getIntl()->primarykeymap)
+ owner_->getIntl()->KeyMapSec();
+ } else {
+ if (!owner_->getIntl()->primarykeymap)
+ owner_->getIntl()->KeyMapPrim();
+ }
+}
+
+
+void BufferView::Pimpl::insetSleep()
+{
+ if (bv_->the_locking_inset && !bv_->inset_slept) {
+ bv_->the_locking_inset->GetCursorPos(bv_->slx, bv_->sly);
+ bv_->the_locking_inset->InsetUnlock(bv_);
+ bv_->inset_slept = true;
+ }
+}
+
+
+void BufferView::Pimpl::insetWakeup()
+{
+ if (bv_->the_locking_inset && bv_->inset_slept) {
+ bv_->the_locking_inset->Edit(bv_, bv_->slx, bv_->sly, 0);
+ bv_->inset_slept = false;
+ }
+}
+
+
+void BufferView::Pimpl::insetUnlock()
+{
+ if (bv_->the_locking_inset) {
+ if (!bv_->inset_slept) bv_->the_locking_inset->InsetUnlock(bv_);
+ bv_->the_locking_inset = 0;
+ bv_->text->FinishUndo();
+ bv_->inset_slept = false;
+ }
+}
+
+
+bool BufferView::Pimpl::focus() const
+{
+ return workarea->hasFocus();
+}
+
+
+void BufferView::Pimpl::focus(bool f)
+{
+ if (f) workarea->setFocus();
+}
+
+
+bool BufferView::Pimpl::active() const
+{
+ return workarea->active();
+}
+
+
+bool BufferView::Pimpl::belowMouse() const
+{
+ return workarea->belowMouse();
+}
+
+
+void BufferView::Pimpl::showCursor()
+{
+ if (screen)
+ screen->ShowCursor();
+}
+
+
+void BufferView::Pimpl::hideCursor()
+{
+ if (screen)
+ screen->HideCursor();
+}
+
+
+void BufferView::Pimpl::toggleSelection(bool b)
+{
+ if (screen)
+ screen->ToggleSelection(b);
+}
+
+
+void BufferView::Pimpl::toggleToggle()
+{
+ if (screen)
+ screen->ToggleToggle();
+}
+
+
+void BufferView::Pimpl::center()
+{
+ beforeChange();
+ if (bv_->text->cursor.y > workarea->height() / 2) {
+ screen->Draw(bv_->text->cursor.y - workarea->height() / 2);
+ } else {
+ screen->Draw(0);
+ }
+ update(0);
+ redraw();
+}
projects / features.git / blobdiff